EBay Shouldn't Unfriend Its PayPal

While some marriages get expensive, divorce is often even more costly. Investors betting that eBay will spin off its PayPal business would do well to keep that in mind.

This old idea was revived this week by none other than Carl Icahn, the billionaire activist who has been canvassing the tech sector for new targets. That he latched onto eBay isn't too surprising, as the e-commerce giant's shares stalled in 2013 amid slowing revenue...